HW PWM working, but dt is too small
PWM sort of working. Delays should be 250ms, but is way to short. prob. overflowing.
uhhh fixed timing. need to fix speed calculation.
H
PWM working well enough to start. Need B+ model for other motor PWM.
pwm pid gone for now, refactoring for nicer code. moving motor variables to struct.
Merge branch 'master' of https://github.com/nearwood/rpi-drd